ELECTRICALResources / Electrical symbols / SemiconductorsUpdated 29 Oct 2026

N-channel MOSFET symbol

Also called NMOS, MOSFET, Field effect transistor

A transistor switched by the voltage on its gate. The broken channel line means enhancement mode (off until switched on); the arrow pointing in means N-channel.

N-channel MOSFET symbol, ANSI / IEEE 315ANSI / IEEE
N-channel MOSFET symbol, IEC 60617IEC 60617

What the N-channel MOSFET symbol means

A transistor switched by the voltage on its gate. The broken channel line means enhancement mode (off until switched on); the arrow pointing in means N-channel.

ANSI and IEC symbols

ANSI / IEEE 315

A gate plate beside a broken channel, with the arrow on the body pointing in.

ANSI SVG
IEC 60617

IGFET, enhancement type, N-channel. The same symbol, usually without a circle.

IEC SVG

Where you see it

Power switching in drives and power supplies, load switching and logic level switching.

What is written next to it

On a schematic, the N-channel MOSFET usually carries its designator and part number, such as Q3 IRF540N.

Frequently asked questions

What does the N-channel MOSFET symbol look like?

On ANSI drawings: A gate plate beside a broken channel, with the arrow on the body pointing in. In IEC 60617: The same symbol, usually without a circle.

Is the N-channel MOSFET symbol the same in IEC and ANSI?

Yes, it is drawn the same way in most legends.

Where is a N-channel MOSFET used?

Power switching in drives and power supplies, load switching and logic level switching.

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